Sanding drum



FIG. 1 is a typical side elevational view of a sanding drum showing my new design;

FIG. 2 is a typical side elevational view;

FIG. 3 is a typical side elevational view;

FIG. 4 is a typical side elevational view;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a sanding drum, as shown and described. 